The 'base value' that appears in the temperature tool-tip popup shows that it's in units of degrees-C, but it actually appears to be in kelvin. If the base value is converted to deg C (subtract 273.15), then the math works out (total_value = base_value + gold_amalgam_bonus).
Steps to Reproduce
Steps to reproduce: 1) Click on a machine that has an overheat temperature (eg, a thermo regulator) 2) Mouse over the purple 'Overheat Temperature' text 3) Observe tool-tip popup Expected result: total_value = base_value + gold_amalgam_bonus 125 = 75 + 50 Actual result: total_value != base_value + gold_amalgam_bonus 125 != 348.2 + 50 [see attached image]
This issue has not been confirmed by a developer yet.